drm: Nuke modifier[1-3]

It has been suggested that having per-plane modifiers is making life
more difficult for userspace, so let's just retire modifier[1-3] and
use modifier[0] to apply to the entire framebuffer.

Obviosuly this means that if individual planes need different tiling
layouts and whatnot we will need a new modifier for each combination
of planes with different tiling layouts.

For a bit of extra backwards compatilbilty the kernel will allow
non-zero modifier[1+] but it require that they will match modifier[0].
This in case there's existing userspace out there that sets
modifier[1+] to something non-zero with planar formats.

Mostly a cocci job, with a bit of manual stuff mixed in.

@@
struct drm_framebuffer *fb;
expression E;
@@
- fb->modifier[E]
+ fb->modifier

@@
struct drm_framebuffer fb;
expression E;
@@
- fb.modifier[E]
+ fb.modifier

Cc: Kristian Høgsberg <hoegsberg@gmail.com>
Cc: Ben Widawsky <benjamin.widawsky@intel.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Tomeu Vizoso <tomeu@tomeuvizoso.net>
Cc: dczaplejewicz@collabora.co.uk
Suggested-by: Kristian Høgsberg <hoegsberg@gmail.com>
Acked-by: Ben Widawsky <ben@bwidawsk.net>
Acked-by: Daniel Stone <daniels@collabora.com>
Acked-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1479295996-26246-1-git-send-email-ville.syrjala@linux.intel.com

1 files changed, 2 insertions, 2 deletions

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index 7166a1a6265d..6b159bab42b0 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -1896,7 +1896,7 @@ static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
 			   fbdev_fb->base.height,
 			   fbdev_fb->base.depth,
 			   fbdev_fb->base.bits_per_pixel,
-			   fbdev_fb->base.modifier[0],
+			   fbdev_fb->base.modifier,
 			   drm_framebuffer_read_refcount(&fbdev_fb->base));
 		describe_obj(m, fbdev_fb->obj);
 		seq_putc(m, '\n');
@@ -1914,7 +1914,7 @@ static int i915_gem_framebuffer_info(struct seq_file *m, void *data)
 			   fb->base.height,
 			   fb->base.depth,
 			   fb->base.bits_per_pixel,
-			   fb->base.modifier[0],
+			   fb->base.modifier,
 			   drm_framebuffer_read_refcount(&fb->base));
 		describe_obj(m, fb->obj);
 		seq_putc(m, '\n');